Proteins synthesis II MSc.,

The synthesis of polypeptide can be divided into ______ distinct activities.

• a) 1
  

• b) 2
  

• c) 3
  

• d) 4

Answer explanation

The synthesis of polypeptides, termed as translation, involves 3 distinct activities: initiation of the chain, elongation of the chain, and termination of the chain.

Label the parts

c

d

e

f

b

a

Translation

DNA

Transcription

RNA

mRNA

Group of amino acids

Observe and Label the parts

c

d

e

f

g

h

i

b

a

Translation

Transcription

mRNA

mRNA

tRNA

tRNA

tRNA

DNA

Amino acids

tRNA

Match the following

• Transcription

• 
• mRNA

• 
• mRNA attaches to a ribosome

• 
• codon

• 
• Code that matches codons in mRNA to amino acids on tRNAs

• 

Which of the following is an initiation codon?​ (a)  

• AUG
• AAA
• AGU
• AGG

Answer explanation

Explanation: Initiation codon, AUG, is the site where the ribosome machinery attaches itself on the mRNA strand. Attaching to the initiation codon puts the ribosome in the proper reading frame of translation.